Fix app-rebuild logic

[gerrod3]

Lets see if I caught all the errors in this new app logic.

1. Missing packaging requirement for the check_up_to_date script
2. Fixed the echo message for if we are going to rebuild
3. Reverted back to old logic for finding app-version/branch since new way didn't work for nightly (pip freeze will give you the commit not the version like pip list)
4. Use the appropriate output redirect '>' instead of '>>' for versions.freeze (this was causing the multi-line output issue)
5. Added token so release workflow can properly remove the old cache